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© 2021 United States Stove Company
19
Display is Flashing “E2”
Possible Causes Possible Remedies: (Unplug stove rst when possible)
Airow switch hose or stove attachment
pipes for hose are blocked.
Unhook air hose from the air switch and blow through it.
If air ows freely, the hose and tube are ne. If air will not
ow throw the hose, use a wire coat hanger to clear the
blockage.
The air inlet, burnpot, interior combustion
air chambers, combustion blower, or
exhaust pipe are blocked with ash or foreign
material.
Follow all cleaning procedures in the maintenance section
of the owner’s manual.
The rebox is not properly sealed.
Make sure the door is closed and that the gasket is in good
shape.
Vent pipe is incorrectly installed.
Check to make sure vent pipe installation meets criteria in
owner’s manual.
The airow switch wire connections are bad.
Check the connectors that attach the gray wires to the air
switch.
Combustion blower failure.
With the stove on, check to see if the combustion blower is
running. If it is not, you will need to check for power going
to the combustion blower. It should be a full current. If
there is power, the blower is bad. If there is not, make sure
the control board is sending power to the air switch.
Control board not sending power to
combustion blower.
If there is no current going to the combustion blower, check
all wire connections. If all wires are properly connected,
you have a bad control board.
Control board not sending power to air
switch.
There should be a 5-volt current (approximately) going to
the air switch after the stove has been on for 30 seconds.
Air switch has failed.
To test the air switch, you will need to disconnect the air
hose from the body of the stove. With the other end still
attached to the air switch, very gently suck on the loose end
of the hose (you may want to remove the hose entirely off
the stove and the air switch rst and make sure it is clear).
If you hear a click, the air switch is working. BE CAREFUL
TOO MUCH VACUUM CAN DAMAGE THE AIR SWITCH.
TROUBLESHOOTING GUIDE
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